00314nam a2200121Ia 4500008004100000082002000041245003100061260002900092650001300121650002500134650001400159650001900173220204s9999    xx            000 0 und d  a631/635bADV.06 0aAdvances in agronomy. V 06  aNew YorkbAcademicc1954  aAgronomy  aPotassium deficiency  aSeed flax  aTrace elements